# pvginkel/PdfiumViewer

PDF viewer based on Google's PDFium.

Repository: https://github.com/pvginkel/PdfiumViewer
Canonical: https://ross.abutalabs.com/products/pdfiumviewer
Language: C#
License: Apache-2.0
License Family: permissive
Archived: true
Last push: 2021-07-28T13:58:51+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4410, "days_push": 1862, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1025, forks 451 (observed 2026-08-28T04:03:16.634422+00:00)

## What it is
A C# WinForms library wrapping Google's PDFium to render and display PDF documents. It provides PdfDocument for loading PDFs, PdfRenderer for rendering, and a PdfViewer control with a basic toolbar for saving and printing.

## Use cases
- display pdf files in a winforms application
- render pdf pages in c#
- embed a pdf viewer control in a .net desktop app
- print pdf documents from a windows application
- load and render pdfs using pdfium in .net

## When to choose
- you need a native PDF rendering control in a WinForms app without external dependencies like Adobe Reader
- you want fine-grained control over PDF rendering via the PdfRenderer component

## When to avoid
- you need an actively maintained library - the project is archived and unsupported
- you target platforms other than Windows
- you need WPF or cross-platform .NET support

## Facets
- artifact type: library
- maturity: abandoned
- function: pdf-viewer, pdf, ui-components
- domain: pdf, desktop-applications, files
- platform: windows, dotnet
- tags: pdfium, winforms, c-sharp, document-rendering, archived, desktop

## Member repositories
- pvginkel/PdfiumViewer (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:16.634422+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:08:05.306917+00:00, confidence not recorded.
  - readme: https://github.com/pvginkel/PdfiumViewer (fetched 2026-08-28T04:03:16.634422+00:00, sha b58fa5ecb153)
- Data as of 2026-08-30T08:39:29.467469+00:00.